Landing: 10a4ba553e6a

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Project / Subsystem

gcc / sched-deps

Date

2026-07-27

Author

Kyrylo Tkachov

Commit

10a4ba553e6a693b5a75c0a6f67c30989efda307

Source

github

Perf win

No

Breaking

No

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All attributes

project: gcc
subsystem: sched-deps
patch_id: —
commit_hash: 10a4ba553e6a693b5a75c0a6f67c30989efda307
source_type: github
headline: sched-deps: Clear dependency caches before freeing them
tldr: Fixes memory leaks in sched-deps by ensuring dependency cache bitmaps are cleared before cache arrays are freed.
author: Kyrylo Tkachov
outcome: committed
performance_win: false
breaking_change: false
series_id: —
series_parts: []
tags: • optimization
• scheduler
• memory management
discussion_id_link: —
bugzilla_pr: —
url: https://github.com/gcc-mirror/gcc/commit/10a4ba553e6a693b5a75c0a6f67c30989efda307
date: 2026-07-27T00:00:00.000Z

This commit corrects a memory leak in the sched-deps component by ensuring that dependency cache bitmaps are properly cleared before the associated cache arrays are freed. Previously, sched_deps_finish reset cache_size prematurely, causing the cleanup loop to iterate zero times. This resulted in the cache arrays being freed without their bitmap elements being returned to the obstack. The fix moves the cache_size reset to after the cleanup loop, guaranteeing that all allocated memory is reclaimed.